Septiyani, Eny, Wahyudin Nur, and Indra Jaya. 2021. “PENGEMBANGAN INSTRUMEN TES HIGHER ORDER THINKING SKILL (HOTS) MELALUI MODEL PEMBELAJARAN PROBLEM BASED LEARNING”. Algebra : Jurnal Pendidikan, Sosial Dan Sains 1 (4):40-52. https://ejournal.yana.or.id/index.php/algebra/article/view/64.